Carbureter.



B. KAMENSKI.

vCARBUFETER.

APPLICATION FILED IAN.Y26, I9I5 Patented Sept. 26, 1916.

2 SHEETS-SHEET l.

@PERA 75D B. KAMENSKI.

CARBURETER.

APPLlcATIoN FILED 1AN.26,1915.

PzltelxtedSept. 26, 19113.

2 SHEETS-SHEET 2.

` BASIL KAMENSKI, OF MOSCOW, RUSSIA.

CARBURETER.

Specification of Letters Patent.

I'atented Sept. 26, 1916.

Application filed January 26, 1915. Serial No. 4,571.

To all 'whom t may concern.'

Be it known that I, BASE. KAMENSKI, a subject of the Czar of Russia, residing at 19 Trubnilrovslri pereulol, Moscow, Russia, have invented certain new and useful Im? provenients in Carbureters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains, to make and use the same.

The present invention relates to improvements in carbureters, and more particularly consists in an improved carburetor having a mixing chamber in communication with a fuel supply pump through separateducts, one of which is under the control of an automatically operated valve adapted to close when a predetermined speed is reached, and the other of which is under the control of a manually actuated valve associated with the throttle mechanism.

Attention is called to my co-pendng apH` plication for vertical centrifugal pump, etc. Serial ,No 17 97 filed January 12, 1915, iii. {irhich isi'more particularly set out and claimed the pumping mechanism.

With these and other objects in view the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims.

In the accompanying drawings forming a part of this application, and in which similar reference symbols indicate correspending parts in the several views: Figure l is a' vertical sectional View through an apparatus constructed in accordance with the present invention. Fig. 2 is a horizontal sectional view ofthe same. Fig. 3 is an en` larged vertical sectional view of the pump. Fig. 4 is an enlarged vertical sectional view of the mixing chamber; and Fig. 5 is a cross sectional view through the same.

Referring more particularly to the drawings, 20.designates a fuel chamber in com'- munication with a source of supply through an inlet 21. Entrance of thev fuel from the supply and through the inlet 21 is under the control of a valve 22, which is operated by means of a float mechanism B,'as clearly shown in Fig. 1 to be of a common type well understood, and it is therefore deemed unnecessary'to describe the elements thereof in detail; and the same form no part 'of the present invention.

The fuel chamber 20 is in continuous open a resilient connection R.

communication through a passage 6 with a pump casing A. Through the casing A is journaled a vertical shaft 3, arranged to be constantly driven from the engine, and on which is mounted within the cas-` ying A, a rotary pump 2. The base of the pump casing A is formed with a circularl recess 23, as disclosed to advantage in Fig. 3, in which it is fitted to oscillate on ball bearings 24 a circular ring 25. To the ring 25 are connected wings .14 and 14 extending immediately beneath the vanes of the rotary pump` 2 and having their ends dis- 7 A25 and companion wing 14 to normally maintain the valve 29 open., The odset 28 is in communication through a duct 32 with the nozzle C of the carburetor, the delivery of the fuel therethrough being under the control of a valve F, shown more particularly in Fig. 4.

The nozzle C of the carbureter is located. in the mixing chamber D in the usual manner, and above said nozzle is a throttle valve L constructed after any of the approved types as now in use, and adapted to be l actuated by a lever or pedal in operative connection with an arm N. lThe arm N projects from a ring O on which is a fragmentary gear M arranged, when the throttle is being opened wide, to encounter a gear segment M connected to the valve F through Vhen the valve F is oscillated through these gear connections' it will move axially to open or close, due to the threaded upper end 33 thereof engaging in the threaded bearing 34.

In the nozzle C is a plug 9 having curved passages 8 through'which the issuing fuel is directed, and which imparts to such fuel a rotary motion such as indicated by the arrows in Fig. 1. A valve 10 is also fitted in the nozzle C, and is fixed to a stem 11 through which the valve maybe regulated.

12 is a lever, supported in any" adjusted. position by a spring 13.

' mined pressure.

The operation ot the improved apparatus may be substantially described as tollows: Fuel from a tank will llow in tlufough the inlet Q1 to the chamber 2l), as permitted by the valve 22 under the inlluence. ot the. float device l, which maintains a constant level in said chamber 20 in a well understood manner. The tuel in the chamber 2O flows freely through the passage (3 to the pump casingl under the inlh'icnce oi' gravity and the. suction ot' the rotary pump 2. The pump 2 will be rotated continuously from the shaft 3, which is arranged to be driven from the engine at the same or a proportionate speed, and such pump will impart to the Jfuel incoming from the passavo (5 a similar rotary motion, which is indicated by the arrows in llig. Q. ,lhe it'uel in its rotary` vmotion encounters the wings l-l and 1l which oppose its movement, and thereby has a tendency to move the wings and connected ring in a clockwise direction with-roten ence to Fig. 2. This clockwise shifting of the wings ll and ,l-,l has a tendency to close the valve against its seat 80, and prevent passage oli the iuel :troni the pump casing through the oll'set Qi' and duct il to the nozzle C ot' thcI carluueter. The closing ot the valve 2f) is, however, opposed by the coil spring lli in the opposite oll'set which ma \r beset to yield at any predeterl`he spring lll yielding when the predetermined pressure. is exceeded, the valve 20 will close.. lt will thus be seen that the valve 2f) is automatically7 op i erated and controlled from the engine speed,

the valve being used l'or light running. ils the engine speed is increased the throttle l1 is, ot' course. being opened; and w ien being li. 'lheturning motion ot' the valve l" is,

through the threads thereon engaging with the threads in the bearing ll, operative to opcn said valve; so'that after the. valve QS) has been closed, on the engine ex.- ceeding the predetermined speed, the val\e F will, upon opening the throttle to increase the speed tui-ther, be shifted to open and permit the. vluel to pass from the pump casing A through the. oils-et QS and duct, 32 to the nozzle C: rl`he fuel flowing through the nozzle C and through the curved passages in the plug 9 will receive a rotary move.- ment, as indicated by the arrowsI in lfig. l.. The issuing fuel will heroine mixed with incoming air, and the charge thus formed delivered to the engine, as indicated and as will be understood. lVbcn the. throttle is moved to` cut down the speed ot' the engine, the valve, ll`lwill be likewise closed; and Whelrtho engine speed reduces, the speed of the pump 2 being likewise decreased, the opposition otlered the spring 16 by the ro- -tating fuel mass, will fall and the spring open the valve :29 through the associated wings 14 and li and ring 25.

lt is obvious that those skilled in the art ma)v vary the details ot'construet-on and arrangements ot` parts without departing from the spirit ot' 'my invention, and there- Yt'ore l do not wish to be limited to such features except as may be required by the claims.

l claim:

1. lln a device of the character described, the combination ot' an engine, a earliureter mixing chamber, a nozzle in said chamber, a pump in communication with a source of fuel supply, a. plurality of ducts connecting said nozzle and pump, a` valve automatically operated by the engine for controlling passage ot' the fuel from said pump to the nozzle through one ot said ducts, a valve in the other ot' said ducts 'tor controlling the fuel passage therethrough, and means for actu ating` said last-named valve, substantially as described.

ln a device of the character described, the combinationoi an engine, a Carburetor mixing chamber, a nozzle in said mixing.

chamber, a rotary pump in communication with a source of fuel supply, means for driving said pump i'rom the engine, a pluralitv ot ducts connecting said pump and nozzle` a valve controllimgpassage of the l'uel vl'roin said pump to the. nozzle through one ol said ducts. spring means for normally maintaining said valve open` means actuated b v the 'l'uel mass in said pump for closing said valve when a predetermined speed is attained. a second valve controlling passage through another ot said ducts, and means actuated b v the, operator tor controllin T said laslsnamed valve, subsliantiall)Y as described.

Il. in a device of the character described, the combination olE an engine. a carbureter mixing chamber, a nozzle in said mixing chamber` a rotary pump, means lor driving said pump l'roni the engine. a plurality of. ducts connecting said pump and nozzle, a valve controlling passage of the fuel from said pump to said nozzle tlurough one of said ducts. s u'ine means for normall maintaining said valve open. movable wings connected to said valve and adapted to be operated upon by the rotating luel in said pump and close said valve al'tcr a predetermined speed has been reached., a second .valve located in another of said ducts, and operatorscontrollcd means l'or actuating said last-- -named valve.`substanliaIl v as dcscri ied.

Vl. ln a device ol the character deser'hed.. lhc combination ol' an engine` a carhii'ifeter mixing chamber. a nozzle in said chamber, a rotar)r pump, means l'or driving said pump l'roni the, engine.' a plurality olE ducts conring. fitted in said pump, Wings extending from said ring, one of said Wings loeconnected to said valve, a spring assoelated with another of ,said Wings for normally operating to maintain said valve open, said Wings adapted to be encountered 10V by the rotating fuel mass in said pump and close said Valve 'in opposition to said sp1-ing, a second valve 1n another of said ducts, a

throttle in said-mixing chamber, means for actuating said throttle, and means connected between said throttle and second-named Valve for actuating the latter tov open afterthe first-named Avalve has. been automatically closed, substantially as described. In testimony whereof, I affix my Signature, in presence of two Witnesess.

' j BASIL KAMENSKI.

lVitnesses L. ROLL, B. KUSMIN. 

